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Carbonic anhydrase II deficiency

M P Whyte1

  • 1Metabolic Research Unit, Shriners Hospital for Crippled Children, St. Louis, MO 63131.

Clinical Orthopaedics and Related Research
|September 1, 1993
PubMed
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Carbonic anhydrase II deficiency, an inborn error of metabolism, offers insights into osteoclast function and bone resorption. This rare condition affects bone development and acid-base balance.

Area of Science:

  • Genetics and Metabolism
  • Skeletal Biology
  • Renal Physiology

Background:

  • Carbonic anhydrase (CA) isoenzyme II deficiency is a rare autosomal recessive disorder.
  • Previously known as osteopetrosis with renal tubular acidosis and cerebral calcification.
  • It provides critical insights into osteoclast function and bone resorption processes.

Purpose of the Study:

  • To elucidate the clinical and pathological features of Carbonic anhydrase II deficiency.
  • To understand the role of CA II in bone metabolism and acid-base homeostasis.
  • To review identified mutations and their implications.

Main Methods:

  • Case study analysis of approximately 50 described cases.
  • Radiographic and histopathologic examination of affected individuals.

Related Experiment Videos

  • Genetic analysis to identify mutations in the CA II gene.

    • Main Results:

    • Characterized by osteopetrosis, renal tubular acidosis, and cerebral calcification.
    • Symptoms include developmental delay, short stature, fractures, and cranial nerve compression.
    • Bone resorption defects and impaired renal acid excretion are key features.
    • Various mutations in the CA II gene have been identified.

    Conclusions:

    • CA II deficiency highlights the crucial role of carbonic anhydrase II in human physiology.
    • It impacts bone resorption, acid-base balance, and potentially neurological function.
    • Further research is needed to understand pathogenesis and develop therapies.